Combination strain-plate and removable trolley-frog.



J. E. BURGESS. COMBINATION STRAIN PLATE AND REMOVABLE TROLLEY FROG.

APPLICATION FILED AUG. I. I914. 1 72,208. Patented July 9, 1918.

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41 fz'zvezztor attest, JflBzzrgess APPucATioN man ALIGJ, 1914.

Patented July 9, 1918.

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I'll: E

J. E. BURGESS.

COMBINATION STRAIN PLATE AND REMOVABLE TROLLEY FROG.

APPLICATION FILED AUG. 1. I914.

Y Patented July 9, 1918.

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Inventor s w s t W a W a B 4 E W J 2 Wm N NE W M in f w 2 .l. E.BURGESS.

COMBINATION STRAIN PLATE AND REMOVABLE TROLLEY FROG.

APPLICATION FILED AUG. 1. I914.

1 ,272J208. Patented J 'uly-9, 1918.

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Inventor J EBuzgess struction' wherebythe trolley frog can be JOSEPH E.mmenss, or sr. Louis. MIssouR COMPANY; or sir. LOUIS, ivilssouni,

I, ASSIGNOSI 'IO MOBE J' ONES BRASS & METAL A CORPORATION OF MISSOURI.

C(lMBINATION STRAIN-PLATE AND REMOVABLE TROLLEY-FROG.

To all whom it may concern: f Be it known that L'Josnrn E. B RGESS, acitizen of the. United States of America, and a residentof the city'ofSt'Louis and State of Missouri, have invented certain new and usefulImprovements in "Combination Strain-Plates and Removable Trolley-Frogs,

of which the following isa specification.

The primary objectof this'inv'ention isto provide an improved trolleyswitch conremoved and a'newTro'g placed without disturbing the guy wiresand trolley Another objectof thisinvention' is to pro "vide an improvedstrain plate in combination Witha removable trolley frog.

A further'objectof this invention is to provide a strainorsupportingplate that is adapted to hold the trolley wlres'independently of the frog. i

Other and'further objects will appear in thespecification and bespecifically pointed 'out'in the appended claims, reference being had tothe accompanying drawings exemplifying the invention, and in which,

Figure 1 isa plan View of the strain --p1ate=used in combination with aremovable 'trolley'frog. Y 7

Fig. 2 is an inverted view of'Fig. 1.' Fig. 3 isaplanviewof a removabletrolley frog which is adapted to'be used incombination with astrainplate. j

' Fig. 4 is an inverted .view of Fig. 3.

Fig.5'isa plan view of a strain1plate,simi lar toiFig. but showing theparts relating thereto assembled therewith "Fig. 6 is a side elevation'ofF-i'gq5.

Fig; 7 is a longitudinal sectiontaken on the line VII-VII, Figi'5."

Fig. 8 isa longitudinal section the line VIII-VIII, Fig. 1 5.

taken on Fig? is anenla'rged' cross section taken on the line'IX- IX,Fig. 5.

on the line X -X, F1gi*5. I

Fig. llis an enlarged cross sectio'ntaken on the"'line XI+XI,*Fi .15.

7 "Fig. 10 isan enlarged cross sectiontaken P l ;Fig. 12"isan enlarge' f'end view ofiione "of-the approaches.

*Fig. 13 'i's-a view showing jopp'osite end o-f the approach shown inFig". 12; A-In ehe' present construction of trolley switches, thetrolley frog iI1 reality is the swi h ii ei the seller adguy Wi sSpecification of Letters Patent.

' Patented July 9, 1918.

Application filed August 1, 1914. Serial No. 854,453.

being connected to the frog. When the frog has become worn and it isrequired to re- 'move' it and replace it by a new frog, the guy W resand trolley wires have to be dis connected.

This necessitates block and tackle to prevent the trolley wires fromfalling until a' new frog has been secured to the guy wires so that thetrolley wires can be in turn secured to the new frog. This able time.

In this improved construction,'the strain plate, or supporting plate, 1is adapted to task is quite laborious and takes considerbe permanentlyheld in position by the guy wires, the connecting wn-es, in thislnstance, being secured in the eyes 2 of the end ears 3 and the eyes 4of the intermediate ears 5, see Fig. 5. This improved strain plate isadapted to serve for either a left-hand or a right-hand lead by merelyturning the strain plate over, Fig. 1 showing the strain plate inposition for a left-hand lead, Fig. 2 showing the strainplate inposition for a right-hand lead. After this improved strain a plate hasbeen suspended in proper position by the guy wires, the main trolleywire 6 is engaged against the under side of the strain plate, saidtrolley wire adapted to en- 5 gage the inclined guiding groove 7 whichis formed on one end of the strain plate, an intermediate guiding groove8, and an end guiding groove 9 which is formed in saidstrainplateopposite to the-groove 7.

Formed in said" strain plate 1, interme-' diateof its ends, is alongitudinal slot 10,

\ said slot having a pair of oppositely disposed recesses 11 formedadjacent each end. U-

bolts 12 are then engaged against the under 'side of the trolley wire 6,adjacent the slot "10, and are engaged in the opposite recesses 11. Aplate" 13 is then mounted on each U-bolt, said plates engaging on thetop of the strain plate. When nuts 14 are tightened on the U-bolts, aportion of the main trolley wire 6 is drawn up into the slot 10, therebyfirmly clenching and securing the main trolileyfwire' to the strainplate.

-The left o'rright lead of'this improved "strain plate is formed byhaving a portion 15 of said strain plate lead ofl at an angle from themain body portion. Formed on the portion 15 is "a circular portion 16which has 'a circular groove 17 formed therein.

on account; of, wear and: to

portion lfi5 of the strain plate'l, is engaged against the under sideofthegroove 17, passed through the opening 19, then "returned on top(ii-said ortion 15, and 'p'assed around a cIipQO'Wliich is 'oarri'e'clbypair of clamping bolts 21.

Adapted to-be engaged at each are of the strain plate 1, is a trolleywire approach 22 TIie ends-QS of ea Gh of said approaches-are adapted tobe I p p which is formed at the encls of the strain plate l. Formed vintegral yith eacl l approac o eat t -.;tr l .ey ,t pt t f o, proach 30having a horizontal S id. re itni fl hssa Be ru to t p ni .ormelith r sd 1tEQP tiI QS- dertt t l n with t Wheresnse tt m atljlace tth e recess'28 ofthe portion 15. j

, 'A tip ed, mi e l eeee against de side, of the strain plate 1 is aremovable e eyj a i t ll y t h ing 01- l y W eel en a ing .r tti es 3.2w ,3

which are adapted to eng ge agais't the nde si e o he mtiint rt eyy wiretwee ol r n t ee ro i '1 36 Wh 'is a aptd 1r Qb en e d a jace the underSide of the lead trolley WirelS. v y

Formedat one end o fveachof the trolley heel engaging portions 34; and.3 5are1a pair o a s ifke of s id a s having -Q openings 38 which areadapted to aliiiewith the bolt open ngs 27 of thestrain plate 1 an o opng 2 f he ppro c es 22,

.there being bolts39 passedthrough each set of Stlditll-IIHIQ openings.The ears flOghaying bolt holes 451, are formed inorie end of the trolleyengaging portion 36. Said bolt holes 41 ai'egatlapted to aline With thebolt holes 32'of thestra1n plate 1, and the bolt holes of the1trolleywire approach 30, said ali i i bolt hol re t ng a d appr ac 3Q havingbolts, passing theret'hroiajigh.

With ,this arrangerneflnt of bolting 'the ap- {proaches antlathe trolleyfrogito the strain 2 plate, the trolley frogis securely held'in po- A-nv rtet 'gt i i 3 i ,-0 t

under sidepf the aforesaid-approaches ifor eng g m n -W t r espe tivetro ley Wires, there being depending fiang'es 4A Y f rmed ion e h ide ofsai g oov wh h are; adapted tozbe clenched against the :under When itis; desired to zr'enioyerthe' j frog 33 replace itrby 1 another. frog-ofhes'ame' construction, the bolts .39 and 42 are reinoveclffroin theirrespectiiife wires and. trolley "on account ofJbeing .cperrnanentlysecured g ged 1. ch list ss. 2

petite.

st lt biiaeng are as esisted aft-e; the 01d frog has'beeri taken dawnand a flew one put in place. It is, therefore, seen that the guy "wiresare ime eisturbed to the strain plate. As afore mentioned, it i s re'aclily see-n nes t-li e strtih plate can be used for both rightandleft-hand leads: by niere'ly r'e'yersing the same, it of"b eing necessarto hayejthe trolley frogs made of botlilef arid r ihtliand construction,Figs.

3 and 4 showin a, frog;

7 t i qb ou 1t. t tt i p o ement'qfjs t ergar, Vliicli relatestoti'olley switoh Q ii i 16 ,W t ti e tis' i ttti lli tiuiblily, .thiisciitting out consiee at e ei sefdr Iabo' 1.-.i-pro Mew rs z i irl t ethe i PPIQrt' Jet r lley 'QgQha ig like 1 r tqe te ed L e ter anthereof, so tl 'atxsaid plate can be reyersed relatiye: the'adaptationof:i'ight' or left n. tit llty-sf itt l as r'tt Irltttfi wett n er errtrte y eate t ee rmtfl t o t d t whe e ygst d -p'l a t' i fi 9 l;iversed position relative {to the supporting. '0 a-l% t' i1 r lt itvfrbgvr .L 3. A strain plate for trolley a ted to be eEp r esly: e e, .s

o-r t x ritl' e 'rl te rp ibe ,i e et the-item her by tit es r p od e ore er ibly twe t es a plate riltttite to w ttest s hand. 2

tti i leertine a ti t 'e til ai t qg-v A st fa -i l t lee-t t e witthi bheme-like rpr eet fet ei Q11; thet fe and bottom thereof that areadaptegl to receiye a o ey ir 9. t s plate tee-h e th r it top .or s bm; p l i t k 1 9a stemmin s id rle r 1 t e t etn pq l onri id; la e t re s ews-P rt l W teasex lat a mq tfqj be m ed in areyersed po itiq @111?means filmed tion can acconunodate' either asleft -oi'-'r1ght edsit ley,le -1.5

6. In a tone.-assa s the st stra nrle s m ri ed e ha e a t l sy Wsecured thereto; a; rernoyably mounted trollea;tteg;steer;ed;, tf said}st aimr et ai te a trolley Wire approach adaptegl tobe secured;

to said strainplate and, said frogl 7. A strain plate' fortrolleyswitcliffrogs ha ing-lik por ons fi med;; n'- he qpft bottom thereofthat aIBQIQfl-QE QGd ftO reeeive ei her its-emit -0 b to 'rQlitm. e gegeagainst' a trolley-wire to accommodate-right "or1e ht ndtri11eyttfireleadsattrolley swith, a st} amass-id a; vtrolley; Wire so.that said plate scan'have plate loeing adapted to be secured to a mainleft hand position relative to the mounting line trolley Wire, a leadtrolley wire portion of either a right or left hand trolley frog 10formed fin said plate for the recep1'iil(l){n of a thereto. lead tro eyWire, said late havin e or- 5 tions formed on the ljop and bfitom gideJOSEPH BURGESS thereof whereby either side of said plate In the presenceof: can be placed uppermost so that said lead vS. W. CRAWFORD, portioncan be placed in either a right or H. G. FLETCHER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

